Are residential fire sprinklers the right standard for my jurisdiction?

Per Colorado permit records, an analysis of 13 model home plans across four homebuilders found a mean installed cost of about $7,600 and a median of about $6,700, inclusive of parts, materials, labor, permitting, plan review and development costs. The lowest documented systems came in under $4,500. The Arvada Fire Protection District puts its localized average at $8,891.52.

That number comes from applying a per-square-foot rate to a house much larger than the ones in the permit data. The Home Builders Association quotes both "over $4.50 per square foot" and "over $15,000" per home. Those two figures reconcile at about 3,333 square feet. The median sprinklered area in the permit records is 1,660 square feet. At that size, $4.50 a square foot is roughly $7,470, which lands within a few hundred dollars of the documented average.

Between 1% and 2%. Against a median new home price of $501,760, a standalone system runs 1.21% and a multi-purpose system 1.79%. The National Association of Home Builders’ own 2024 survey puts the average new home at $665,298; a sprinkler system at Colorado’s documented rate on a house that size is about 1.9% of the sale price. Per sprinklered square foot, Colorado installations run $2.59 to $6.01, which is less than the going rate for hardwood floors, appliances, or landscaping.

The National Association of Home Builders' 2024 construction cost survey puts the average new home at 2,647 square feet, selling for $665,298 – 59% larger than the median home in Colorado building permit records. At that size, sprinklers cost about $12,800 at Colorado's documented rate of $4.83 per square foot, against the $7,600 average recorded here. Builder profit on that house is $72,971, or 11%. If the overhead, marketing, and sales commission are added as part of the builder’s take, their margin increases to over 20% of the home cost. Cabinets and countertops are $19,056. Flooring is $15,388. The driveway is $9,635. Even on a house much larger than the median Colorado home, the sprinkler system is less than the cabinets and countertops, less than the flooring, and roughly one-fifth of the profit. At the Colorado average, it is one-tenth of the profit.

In Arvada, for example, where the sprinkler system averages $8,892, the average fire loss is $55,033.56 – more than six times the cost of the system. Neither figure counts irreplaceable belongings, lost wages, or somewhere to live while the house is rebuilt. The National Fire Protection Association (NFPA) puts average property loss per home fire 55% lower where sprinklers are present. Applied to Arvada’s average, that’s roughly $30,000 in loss avoided per fire.

The 2026 fee schedule for the City of Arvada and the Arvada Fire Protection District’s published fire-protection-system schedule are instructive. For a new, sprinkled, single-family home, the specified permit and plan-review fees are:

Builders already install sprinkler systems in dwellings three stories and up and in multifamily buildings under the commercial code. The trade exists. Extending it to one- and two-family homes is a change in volume, not in capability. And, as demand for these systems increases, labor rises to meet it.

Expanding residential sprinklers in Jefferson County can create a dependable source of work for Colorado’s skilled trades. The U.S. Department of Labor’s  O*NET Program places sprinkler fitters in the same occupational group as plumbers, pipefitters, and steamfitters. Its Colorado projection shows employment in that group growing from 10,460 in 2022 to 12,830 in 2032. That’s a 23% increase, with approximately 1,190 job openings annually from growth and replacement.

Those figures describe a long-term workforce projection. They do not establish how many crews are available in Jefferson County today. Predictable demand for sprinkler systems can help sprinkler contractors train and retain workers. Qualified plumbing contractors may also have a role where multi-purpose residential systems are appropriate and meet local requirements. Jefferson County can and should pair this code modernization opportunity with direct input from local contractors on installation capacity, scheduling, and training needs.

Homeowners may see insurance savings. Insurance is highly personalized based on individuals, their range of insurance needs, and the communities where they live. Per the Home Fire Sprinkler Coalition, many insurers offer discounts for sprinklered homes – so homeowners should shop around because savings vary. State Farm, for example, identifies an automatic sprinkler discount. Travelers Insurance lists interior sprinklers under its protective-device discount, and Allstate notes that sprinklers may qualify for a homeowners discount. No Colorado insurer has a blanket discount approach when it comes to fire sprinklers or other home features, so homeowners should obtain a written quote confirming their eligibility and the annual premium reduction.

Homeowners already care for the systems that make their homes safe and functional, including smoke alarms, plumbing, electrical equipment, heating and cooling, and landscaping – to name a few. A home fire sprinkler system deserves the same attention, but it is a low-maintenance system. The Home Fire Sprinkler Coalition recommends occasional visual checks of the sprinklers and controls and a simple flow test about twice a year. Homeowners can perform the tests themselves, or work with a contractor if they prefer. The goal is to give homeowners clear instructions and a practical choice about who performs the checks, just as they do for other home systems.

Because this cost is small – and it can save money, save water, and save lives. Land, labor, financing, impact fees and materials all move the price of a house further and faster than a sprinkler system does. And the premise that building codes drive up home prices just isn’t supported by the data. A 2026 University of Alabama study examined 45 adoptions of newer residential code editions across 26 states and 2.7 million home sales from 2011 to 2022. For new construction, the price effect was statistically indistinguishable from zero. Across the full sample, 43 of 45 adoptions showed no price increase and 32 showed decreases. If a jurisdiction wants housing to be more attainable there are larger levers available, and none of them require accepting substandard life safety components.

That this costs them nothing. The IRC requirement applies to new construction only, on permits pulled after the date the jurisdiction sets. No existing home is touched. Additions to existing homes are not affected. Jurisdictions may opt to implement these requirements if they choose, but they are not called for by the model code. New growth pays for protecting new growth.

Residents of affordable housing deserve the same level of fire protection as residents of any other new home – and that standard of protection is the standard in the model code. We should not create a sprinkler exemption based on a household’s income or a development’s affordability designation. Fire safety belongs in the project budget from the start, just like the other systems required to make a home safe and livable.

Affordability matters, and the installation cost should be addressed directly. In Jefferson County, the estimated sprinkler cost is approximately 1.9% of the home’s value – though this is a project-specific estimate, not a guaranteed cost for every development. Early coordination among the developer, water provider, fire district, and sprinkler contractor can establish the actual cost and identify practical ways to accommodate it without reducing protection.

The benefit extends beyond the individual household. Home sprinklers can keep an interior fire small, reducing the chance that it grows into a fire that threatens nearby homes. That matters in Jefferson County, where wildfire risk and the possibility of fire spreading between structures are community concerns. Interior sprinkler systems do not replace defensible space or exterior wildfire protection; they address fires that start inside the home. Every new home, affordable or otherwise, should provide that protection for themselves, their neighbors, and Colorado’s surrounding natural beauty.

Yes, at the community level. Insurers use ISO's Public Protection Classification to rate homeowners coverage for every property in a fire district, and a poor rating can make coverage hard to find at all. Water supply accounts for 40% of that rating, measured against the fire flow a district must be able to deliver – and ISO's own schedule recognizes homes protected by NFPA 13D sprinkler systems when it calculates that requirement. ISO also awards additional credit for fire prevention code adoption and enforcement. Over time, sprinklered development can improve a district's rating, and a better rating can lower premiums for every home in the district, sprinklered or not. That is separate from the parcel-level wildfire risk scores carriers use in the interface, which measure the outside of the house and are now governed by HB25-1182.

Several, and most are already written into the codes. Under the 2024 International Residential Code, a sprinklered home can qualify for reduced fire-separation distances between houses, a one-hour townhouse common wall instead of two, a half-hour separation between duplex units instead of one, and larger habitable attics, mezzanines and sleeping lofts. Under the 2024 International Fire Code appendices, sprinklered development lowers the required fire flow for a typical home from 1,000 gallons per minute for an hour to 500 for half an hour, widens permitted hydrant spacing by 25%, and can remove the requirement for a second access road in developments of more than 30 homes. The building official grants concessions with regard to buildings. The fire official and the road or plat authority grant concessions with regard to infrastructure, and only where the jurisdiction has adopted those appendices. Water providers control connection and meter fees, and a jurisdiction can additionally enact fee waivers or expedited review. These are conditional allowances, not automatic entitlements, and what is available depends on which codes and appendices a jurisdiction has adopted. We are happy to walk through the specific options that make the most sense for your community.

Very little, if the jurisdiction already reviews and inspects voluntary installations. Jefferson County, for example, already requires fire protection shop drawings approved by Building Safety and a special inspector employed by the fire district. This all folds into the same process.

That model treats every dollar as identical regardless of what it buys. Run it on egress windows, hardwired smoke alarms, GFCI outlets, or the snow-load tables Colorado jurisdictions set above the national standard, and it produces the same result. The figure is an argument against every provision in the code equally. It also assumes the cost passes straight through to the sale price, and the best available evidence says it does not: Across 45 code adoptions in 26 states, the aggregate effect was zero. Builders absorb code costs in margin and in what they choose to build, and buyers sort into what they can afford. On the numbers in the building permit records, a sprinkler system is 1% to 2% of the price of a home. What’s more, this is the very argument for a building code – that there must be standards to protect life and property to prevent a margin-driven race to the bottom.

Not according to the evidence. The University of Alabama study tested exactly this on the North Carolina and South Carolina border, where the two states adopted different code editions at different times. Building volume in the border counties never shifted in step with a code adoption. Builders build where the lots and the buyers are.

A residential sprinkler is not the same system as in a warehouse. It is a small number of heads on the home’s domestic water supply, each holding a heat-sensitive element that opens only where heat reaches it. The head nearest the fire opens. The rest do not. Current systems are designed around one or two heads operating for seven to ten minutes.

No, and this is the most common misconception when it comes to fire sprinkler. Each head operates independently on its own heat element. Where a system operated at all, a single head was sufficient 85% of the time.

Accidental operation of a fire sprinkler is extraordinarily rare. Sprinkler failure due to mechanical or manufacturing failure is commonly estimated at approximately one occurrence per 16 million sprinklers per year. A sprinkler head is more than ten times less likely to fail in a given year than you are to be struck by lightning. Most unintended discharges result from physical damage, freezing, or overheating rather than a sprinkler activating on its own – and those are rare as well. The homebuilders cite NFPA's own count of non-fire activations, and that number is worth putting in context: It describes a few thousand events a year across tens of millions of sprinklers in service.

No. Sprinklers activate on heat, not smoke, at 135 to 165 degrees. Burnt toast, a steamy shower and a smoky kitchen may trip a smoke alarm. They will not trip a sprinkler.

They do different jobs. An alarm tells occupants to leave. A sprinkler puts water on a fire. Modern furnishings burn hot enough that a room can reach flashover in under three minutes, which is less time than many households need to wake, gather children and get out. National Fire Protection Association (NFPA) data has the fire confined to the object or room of origin 96% of the time where sprinklers are present, against 72% where they are not.

Fire deaths fell for decades. They are rising again. NFPA's 2024 fire loss report puts the U.S. home fire death rate at 8.9 per 1,000 reported home fires, up 2% from 2023 and 25% higher than the rate in 1980. Total civilian fire deaths were 3,920 in 2024, up 6.8% from 2023 and 37% above the 2012 low. One- and two-family homes account for 65.8% of those deaths. And, in Colorado, the residential structure fire injury rate runs 33% above the national average – 26.2 injuries per 1,000 fires against 19.7. Ultimately, the fires that kill people are those that grow before help can arrive. Sprinklers help extinguish them.

One head near the point of ignition controls the average residential fire with a few hundred gallons. Suppression by hose line uses several thousand, applied after the fire has grown and often through a wall or a roof. Water damage at the sprinkler scale is negligible or small and repairable. The damage for fires without sprinklers usually is not.

Residential sprinklers do not carry a replacement schedule. In fact, these systems have no annual certification requirement, and a properly installed system with unobstructed, unpainted heads is expected to remain functional for the life of the house. The oldest residential systems in the country date to the mid-1980s and remain in service.

Residential sprinklers are small, and most are available in concealed or recessed versions that sit flush behind a cover plate matched to the color or wood pattern in the ceiling or wall. A buyer who is not looking for them does not see them. In the permit records, installations using exclusively concealed or recessed heads ran roughly $250 to $750 higher than those with standard heads.

Fire-wall requirements acknowledge that occupants should be spared from a fire caused by their neighbor. But what about the people inside the unit where the fire started? A two-hour separation slows fire from moving to the next unit. It does not slow the fire in the room of origin, which is where most residential fire deaths occur. Sprinklers control that fire in the first minutes, while the occupants are still inside. The rated wall and the sprinkler solve different problems. The one that protects the building is no substitute for the one that protects the family. And the IRC reduces the two-hour wall to one-hour when the townhouse building is sprinklered.

The National Park Service puts an average fire department discharge at 3,524 gallons against 280 gallons for a home sprinkler system operating ten minutes, a reduction of up to 91% in potable water consumption. FM Global’s comparative burn tests put the reduction between 50% and 91%.

An NFPA 13D system is designed around one or two operating heads. Typical demand is 13 gallons per minute per sprinkler, and the design assumes two operate at once, so most applications generate a maximum flow of 26 to 35 gallons per minute. Required pressure depends on the sprinkler model and spacing; the NFPA 13D minimum is 7 psi at the head. Design duration is seven minutes for homes under 2,000 square feet and up to ten minutes for larger ones, which puts the total water needed for an event between 260 and 480 gallons. That is a domestic-scale demand, not a commercial one. Fire data from NFPA, NFSA, and Home Fire Sprinkler Coalition show that 94% of the time, 1-2 sprinklers control the fire – meaning the demand on the water supply is considerably less than the thousands of gallons fire departments need to control a house fire.

In most cases it already does, and sprinklers make it easier to manage. A residential system draws household-scale flow for a few minutes. A fire department response draws thousands of gallons in surges. The Town of Erie's engineering director has said that sprinklers make water system management easier for exactly that reason: fires stop creating massive, unplanned spikes in demand, and water use becomes measured and predictable instead of overwhelming the distribution system. Most NFPA 13D systems perform on the existing domestic service, though some require a larger service line or meter. Where street pressure is low, a booster pump can supplement it. These are not specialty fire pumps. Where the domestic supply itself cannot meet the demand, a storage tank with a pump does the job, at roughly $5.00 per sprinklered square foot against $3.50 and up where pressure is available.

Yes, with a different configuration. Where municipal pressure is unavailable, systems use a storage tank with a pump or a pressurized tank. An NFPA 13D system can also run off a well pump where the requisite pressure and duration are available, though the pump may need to be upsized. Where power supply is unreliable, a pressurized tank removes the dependence on electricity. Rural tank-and-pump systems have been estimated at around $5.00 per sprinklered square foot.

Certain configurations may require backflow prevention devices, though not every application will. This is typically up to the local water provider and plumbing codes; there is no blanket requirement. Often backflow precention can be avoided through design such multipurpose systems, where the same plumbing feeds both sprinklers and domestic fixtures, or passive purge systems, with standalone piping serving the sprinklers and one toilet. Under the IRC, a backflow preventer is not required between the sprinkler system and the home's water distribution system if the system complies with NFPA 13D or IRC P2904, uses IRC-permitted piping materials, contains no antifreeze, and has no fire department connection. Where a device is required, the homeowner pays for it and for periodic testing, both of which are economical.

Maybe, but not always. Studies have shown that typical ⅝-inch domestic meters can meet the required flows of an NFPA 13D system, even where those flows exceed the meter's maximum rated flow. The Residential Fire Sprinklers–Water Usage and Water Meter Performance Study, conducted in 2011 by NFPA's Fire Protection Research Foundation, found that domestic meters can sustain flows above their rated maximum without damage, particularly because the high flow rates occur infrequently and for short durations. Some utilities assign sprinklered homes a larger meter, ranging from ¾-inch to 2-inch, with most at ¾-inch or 1-inch. Metering technology is also improving; some utilities are moving to solid-state digital meters that can serve a fire sprinkler system at sizes as small as ⅝-inch or ¾-inch. Because many utilities set fixed charges by meter size, a larger meter can raise the monthly cost. Some utilities have solved this by creating a separate rate class for sprinklered homes, as Philadelphia did in 2011.

Water providers do not typically approve the sprinkler system itself. They control the service connection, including whether a meter is required, its size, and the associated tap and system development fees. The American Water Works Association (AWWA) recommends that the sprinkler design be approved before service line and meter permits are issued, so the connection is sized to the system rather than the other way around.

Substantially, where the jurisdiction has adopted the relevant fire code appendices. Fire flow requirements can be reduced by up to half and hydrant spacing increased by up to 25% in fully sprinklered developments. That is water infrastructure that a jurisdiction does not have to build.

No. A residential sprinkler system protects the inside of a house from a fire that starts inside it. To be clear, it does nothing against a crown fire, a wind-driven ember storm, or radiant heat from a burning neighbor – and we do not suggest it can.

Yes – by keeping a house fire from becoming a wildfire. The National Interagency Fire Center tracks structure origin as its own wildfire cause category as a fire that started in a building and moved to the wildland. A residential sprinkler confines a fire to the room where it started 96% of the time. A fire that stays in one room does not reach the eaves, the deck, the tree line, or the house next door. Flashover can occur in under three minutes. A fire engine cannot deliver water that quickly. A sprinkler can. Jefferson County’s own Wildfire Resiliency Code is designed to “mitigate structure fires from spreading to wildland fuels.” That’s exactly what sprinklers do.

That code governs the outside of the house – roofs, vents, siding, glazing, shrubbery, defensible space, and more. By the code’s own scope, it does not reach the interior. A jurisdiction that has adopted a wildfire code has already done the harder half of this work. Residential sprinklers are the easier and necessary next step.

California’s mandate began in 2011, so it covers a small share of housing stock, and the claim that many of the destroyed homes had suppression is offered as speculation rather than evidence. The larger point stands on its own: Nobody claims a residential sprinkler can defeat a wind-driven wildfire.

The National Interagency Fire Center tracks structure origin as its own wildfire cause category, defined as a fire that started in a structure and moved to the wildland. Separately, based on National Fire Incident Reporting System data from 2019 – 2023, in one- and two-family dwellings where sprinklers were present, activated, and were effective, fire spread was contained within the building 98% of the time, with only 2% of incidents reporting that fire spread to the outside of the building.

NFPA puts the firefighter injury rate 48% lower in home fires where sprinklers were present, from 2017 through 2021. A fire that has been controlled or suppressed is a fire that nobody has to enter.

They arrive at a contained incident rather than a growing one. Smaller fires mean fewer apparatus committed, shorter operations, less overhaul, and a far lower chance of conditions becoming immediately dangerous to life and health. It also means the neighborhood is not absorbing the response. Erie’s transportation and planning staff have made the point that a sprinkler-controlled fire does not require ten heavy apparatus on residential streets, which preserves pavement, keeps the roads open, and spares the surrounding homes. Sprinklers save lives, save money, and save water.

Growth brings more people, more homes, and more calls. The NFSA and IAFC adoption guide urges communities to plan for that demand and to have new construction contribute to its own fire protection through fire sprinklers. In Jefferson County the pressure is already visible: Arvada Fire reported 19,025 calls in 2025, 14,106 of them EMS. West Metro Fire Rescue reported more than 42,000 calls in 2025, a 21% increase since 2017 against 5% population growth. A sprinklered home still generates medical calls, and crews still respond when a fire occurs. What changes is the size of the fire they arrive at. NFPA found fires confined to the object or room of origin 96% of the time where sprinklers were present, against 72% where they were not, and the firefighter injury rate 48% lower.

A controlled fire produces less smoke and fewer combustion products than one that has spread through a structure, and crews arriving at a contained incident spend less time in the environment that produces exposure. Operations are shorter, with less overhaul and fewer personnel committed. NFPA data puts the firefighter injury rate 48% lower in home fires where sprinklers were present.

Most departments in the country respond as all-hazard agencies, and station location and staffing should reflect the community's full risk profile, including EMS demand, travel time and geography, not fire risk alone. In most districts, EMS is the majority of the call volume.

The more immediate return is on the infrastructure side. Where a jurisdiction has adopted the relevant fire code appendices, sprinklered development can reduce required fire flow, widen hydrant spacing, and permit narrower streets and more flexible lot arrangements. Those are capital costs a community does not incur, and unlike station deferral they are available at the time of development.

FM Global and the Home Fire Sprinkler Coalition ran full-scale comparative burn tests and found water use reduced between 50% and 91% compared to firefighter response. FM Global reaffirmed the work in 2021.

The same tests put greenhouse gas emissions 97.8% lower in the sprinklered burn.

In FM Global's comparative burn tests, runoff from the unsprinklered fire exceeded the pH discharge range of 5.5 to 9.0 that most environmental agencies require, and carried more persistent pollutants including heavy metals. In most incidents that runoff is neither captured nor treated. It goes into soil, storm drains and watercourses.

Yes. A wastewater director in one Colorado town has put the figure at as much as 30,000 gallons of polluted suppression water discharged into storm drains in a single incident. Sprinklers can prevent that from happening by suppressing fires with comparatively much less water.

A house fire has three carbon costs. The combustion itself, which FM Global's 97.8% figure addresses. The embodied carbon wasted in the destroyed structure. And the embodied carbon spent rebuilding it. Sprinklers act on all three.

Adoption is a question of politics, not evidence. The International Code Council has kept the provision in every revision since 2009, and the model code is written by the same body whose codes those jurisdictions otherwise adopt wholesale. If sprinklers weren’t effective, the code committee would have removed it. California and Maryland kept the statewide requirement. 20 other states, Colorado among them, left the decision to local jurisdictions, and the Colorado jurisdictions that have kept it are the ones on the Front Range. Codes that amend out residential fire sprinklers are, by definition, substandard. That’s not the Colorado way.

We are saying it is built below the standard the model code sets. The model code is designed, written, and assessed to ensure safety.

Because buyers are rarely shown the option and do not price fire risk at closing. The builder captures the saving once, at closing, and moves on. The homeowner and local governments carry the consequence and cost for the life of the structure.

Optional does not mean nobody gets sprinklers. It means they go into higher-end custom homes and get left out of everything else. Lower-income households already face the highest fire risk. A voluntary standard leaves them out.

Deleting a life-safety requirement does not eliminate a cost. It transfers one, from the builder that does not put it in to the family that is at risk and to the first responders that answer the call.

The claim assumes a 1% to 2% difference in price decides whether a family buys, and that the alternative is always older housing. Preventing a catastrophic fire preserves housing stock, shortens displacement and protects household wealth, all of which support housing stability rather than undermining it.

It is a floor, not a ceiling, and not an economic policy tool. Jefferson County demonstrated it understands the difference when it set snow loads above the national standard, banned a class of heater the model code permits, and required certified inserts in new fireplaces to protect air quality. Jurisdictions regularly adopt the full model code – and exceed it – to protect life and property.

Westminster, Superior, Broomfield, Lakewood, Louisville, Golden, Boulder, Boulder County, Castle Pines, Federal Heights, Cherry Hills Village and Erie have retained the requirement. Arvada recently adopted it. Wheat Ridge requires it for townhomes beginning January 2027. Residential fire sprinklers are right for the Front Range.

Either decision can be challenged, and neither automatically makes a jurisdiction liable for a later fire. Governmental immunity and the public-duty doctrine generally limit exposure for code adoption and enforcement decisions, though the specifics are a question for counsel rather than for us. We are not aware of a reported case awarding damages against a jurisdiction for amending the residential sprinkler provision out of the IRC or for adopting it.

The prudent course in either direction is the same: Confirm the jurisdiction's adoption authority and process, document the public-safety basis for the decision, and administer the adopted code consistently. That last point is where adoption and amendment differ. Adopting the model code as written requires no justification beyond the code itself; the International Code Council has already done the analysis, and the sprinkler provision has survived every revision since 2009. Amending a life-safety section out is an affirmative decision by the jurisdiction, and the record should establish why.

It proves the mandate covers new construction. Maryland’s housing stock, like everyone’s, is mostly homes built before the requirement, and that is where the deaths are. A mandate on new homes changes the numbers one house at a time, over decades. Nobody has ever claimed otherwise. The sooner you adopt the code, though, the sooner you start saving lives.

No. The model code applies to new construction only, on permits pulled after the date the board sets. No existing home, no remodel, no retrofit.

The model requirement is for new homes. Additions to existing homes are not affected.

Not in a properly designed system. The IRC requires protection for water piping exposed to freezing conditions, and both the IRC's residential sprinkler provisions and NFPA 13D specify how. In a Colorado home that means accounting for exterior walls, attics, unheated spaces and anywhere else piping could freeze. These risks must be addressed during design, not afterward.

No water-filled system is immune to an extended loss of heat or an improperly protected pipe. Seasonal homes can be winterized, but the sprinkler system needs its own procedure, coordinated with the domestic plumbing. Homeowners should not shut off or drain a sprinkler system on the assumption that it winterizes the same way as ordinary plumbing.

A home supplied directly by adequate municipal pressure needs no electricity at the house to operate its sprinklers. Local water systems maintain pressure through a mix of tanks, pumps and backup power: Arvada reports nine water tanks and six pump stations, and the Southwest Metropolitan Water and Sanitation District documents automatic generator backup at its Hogback Pump Station. That said, continued pressure cannot be guaranteed in every outage. Indian Hills Water District reports that an extended electrical outage did cause a loss of pressure. Homes on a private well or an electric sprinkler pump need their supply and any backup arrangement evaluated as part of the design. Even where a sprinkler pump loses power, the pressure and water remaining in the system will often still discharge, buying some protection.

Sprinklers look like a selling feature, but no study establishes what they do to a sale price. A 2014 Harris Poll commissioned by the Home Fire Sprinkler Coalition found 74% of homeowners more likely to buy a home with sprinklers, and 69% who thought they added value. In Scottsdale, Arizona, realtors told the fire department that sprinklered homes were easier to sell. Those are stated preferences and one market's experience, not measured Colorado sale prices or a guaranteed return for an individual homeowner.

The model code provision covers one- and two-family dwellings and townhouses, so townhomes and duplexes are in. Modular homes are built to the residential code and are in. Manufactured homes built to the federal HUD code are governed by federal standards that preempt local construction requirements, so a local sprinkler provision does not reach them. Accessory dwelling units depend on how the jurisdiction classifies them.

In Colorado, yes. It is one of 20 states where the decision belongs to local jurisdictions rather than the state. Home rule municipalities have adopted the provision as part of their building codes. Counties adopt building codes for unincorporated territory by resolution of the board of commissioners.

One of four things, depending on where the jurisdiction stands. If it has not yet adopted the current residential code, adopt it as written, without amending the sprinkler section out. If it has adopted the code and amended the section out, restore the section by resolution without waiting for the next cycle. If it wants to offer builders the road and water concessions that offset the cost, adopt the fire code appendices that unlock them. And in every case, hear from the fire service before deciding.

A commitment to retain the provision at the next code adoption, made now, on the record.

Restore the provision by resolution this year, adopt the fire code appendices alongside it, and direct staff to publish the trade-up schedule so builders know what they get.

The Colorado Fire Protection Association is a chapter of the National Fire Sprinkler Association, which is a sprinkler industry trade association. Our coalition also includes members from the National Fire Protection Association, fire marshals, and the fire districts that answer these calls.

You should hear it from your fire chief, and we are happy to help make the introduction.

Sources in this document fall into four groups.

Federal and independent. The National Institute of Standards and Technology (NIST), the U.S. Fire Administration (USFA), the National Interagency Fire Center (NIFC) and the National Park Service (NPS) are federal agencies. The 2026 study of building codes and home prices is University of Alabama research. FM Global is an insurer’s research arm. The Insurance Services Office (ISO), now part of Verisk, rates community fire protection for the insurance industry.

Standards bodies. The National Fire Protection Association (NFPA) writes NFPA 13D, the installation standard for one- and two-family dwellings, and publishes the fire statistics every side cites, including the opposition. Its Fire Protection Research Foundation is its research affiliate. The International Code Council (ICC) writes the International Residential Code (IRC) and International Fire Code (IFC), including IRC Section P2904, the multipurpose sprinkler standard. The American Water Works Association (AWWA) is the drinking water utilities’ association and sets guidance for how utilities serve sprinklered homes. The International Association of Fire Chiefs (IAFC) represents fire service leadership.

The building industry’s own. Several figures here come from the National Association of Home Builders (NAHB), including its 2024 construction cost survey and its per-square-foot and per-home cost claims. Where this document compares a sprinkler system to the rest of a house, the comparison numbers are theirs.

The sprinkler industry. The National Fire Sprinkler Association (NFSA) is the industry’s trade association, and the Colorado Fire Protection Association (CFPA) is its Colorado chapter. The Home Fire Sprinkler Coalition (HFSC) is an education group funded by the industry.